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Finding the Fourth Proportional to 414,378, 622,398 and 400,760.16

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Solution

The fourth proportional to 414,378, 622,398 and 400,760.16 is: 601,943.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,378 : 622,398 = 400,760.16 : x
  2. Step 2: Convert to fraction form
    414,378/622,398 = 400,760.16/x
  3. Step 3: Cross multiply
    414,378x = 622,398 × 400,760.16
  4. Step 4: Simplify right side
    414,378x = 249,432,322,063.68
  5. Step 5: Solve for x
    x = 249,432,322,063.68/414,378
  6. Step 6: Final answer
    x = 601,943.93

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